Storms with Hail and Flooding Sunday (Updated for Flooding info)

A wintry mix of rain, snow and sleet affected Southwest Lower Michigan from late morning to mid afternoon Sunday. This was followed by thunderstorms that dropped a large amount of pea-sized hail across much of Ottawa, Allegan, and Kent Counties, making for slippery travel and minor nuisance flooding due to clogged drains. Figures 1 through 3 show the track of the storm through Kent County, including the Grand Rapids area.  The size of the hail, which can be seen in Fig. 4, was very consistent across the area.

hailstorm in Ottawa County

Fig. 1. Storm moving east across Ottawa County. Dark red and white colors are associated with hail.

 

Fig. 2. Hail near its heaviest in downtown Grand Rapids around 150 PM EDT.

Fig. 3. Hail storm continuing across Kent County.

 

Fig. 4. Typical hail size associated with the storm.

More storms formed late in the evening hours on Sunday evening, and continued into the overnight hours. These storms produced some small hail once again, and produced some decent rainfall through the night on Sunday night.

Below is a radar estimate of the rainfall/melted snow that fell from Sunday morning through Monday morning. The heaviest rainfall occurred in a corridor from southern Oceana county south of Pentwater, to the Mt. Pleasant, Reed City, and Clare areas. These locations saw between 1.5 and 2.5 inches of rainfall/melted snow fell. Some local areas saw just under 3.0 inches of precipitation. Some flooding occured in Mecosta county as standing water was over a few roads in the county, and one road partially washed out.

Click on the image to enlarge.

Below is a list of rainfall reports that were sent in the our office.

HEAVY RAIN REPORTS

LOCATION PRECIP TIME/DATE
(INCHES) OF OBSERVATION LAT LON
MICHIGAN

...GRATIOT COUNTY...
ALMA 1.20 M 748 AM 04/04 43.38N 84.66W

...ISABELLA COUNTY...
1 NE MOUNT PLEASANT 2.63 M 958 AM 04/04 43.61N 84.76W

...KENT COUNTY...
4 E KENTWOOD 0.67 M 752 AM 04/04 42.90N 85.51W
EAST GRAND RAPIDS 0.77 M 801 AM 04/04 42.94N 85.61W
2 W SPARTA 0.86 M 801 AM 04/04 43.16N 85.75W
3 NNE GRAND RAPIDS 1.14 M 801 AM 04/04 43.00N 85.65W

...MASON COUNTY...
6 NNW SCOTTVILLE 0.81 E 801 AM 04/04 44.03N 86.33W
SCOTTVILLE 1.18 M 837 AM 04/04 43.95N 86.28W

...MECOSTA COUNTY...
3 SW BARRYTON 0.00 E 1121 AM 04/04 43.71N 85.18W

...MUSKEGON COUNTY...
4 SSE MUSKEGON 0.91 M 758 AM 04/04 43.17N 86.22W
MONTAGUE 1.57 M 928 AM 04/04 43.42N 86.36W

...NEWAYGO COUNTY...
9 E WHITE CLOUD 1.60 M 340 AM 04/04 43.57N 85.59W
9 E WHITE CLOUD 1.60 M 615 AM 04/04 43.57N 85.59W
HESPERIA 2.71 M 807 AM 04/04 43.57N 86.04W

...OCEANA COUNTY...
4 NNE WALKERVILLE 1.11 M 801 AM 04/04 43.77N 86.09W
3 WSW HART 1.24 M 722 AM 04/04 43.68N 86.42W
4 NW HESPERIA 1.24 M 735 AM 04/04 43.61N 86.10W
8 NW MONTAGUE 2.21 M 801 AM 04/04 43.50N 86.47W

...OTTAWA COUNTY...
ALLENDALE 0.80 M 752 AM 04/04 42.97N 85.95W
3 W WALKER 1.00 M 801 AM 04/04 43.00N 85.83W


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